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PLZ PLZ Help me! I don't know how to do this. Can someone please help me.

PLZ PLZ Help me! I don't know how to do this. Can someone please help me.
asked 65.3k views
3 votes
PLZ PLZ Help me! I don't know how to do this.
Can someone please help me.

PLZ PLZ Help me! I don't know how to do this. Can someone please help me.-example-1
PLZ PLZ Help me! I don't know how to do this. Can someone please help me.-example-1
PLZ PLZ Help me! I don't know how to do this. Can someone please help me.-example-2
PLZ PLZ Help me! I don't know how to do this. Can someone please help me.-example-3
asked
User Nilton Schumacher F
by
7.4k points

2 Answers

5 votes
7)
4n + 5 + 8n - 5 = 180
12n = 180
n = 15

answer
Last one
n = 15
8)
8.5x + 2 = 9x - 6
-0.5x = -8
x = 16
answer
B. x = 16

9)

4z + 3z + 6 = 90
7z = 84
z = 12

answer
A. z = 12

answered
User Talha Bin Shakir
by
7.8k points
4 votes
N in this problem is equal to 15.
answered
User Michal Loksik
by
8.5k points
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